Senior Software Engineer - Devx

At Klaviyo, we celebrate the diverse backgrounds, experiences, and perspectives that each of our team members, whom we affectionately refer to as Klaviyos, brings to our collaborative environment. We believe in providing everyone an equitable opportunity for success and value the unique experiences that extend beyond conventional job qualifications. If you find yourself slightly differing from the outlined requirements, we encourage you to apply. Curious about life at Klaviyo? Explore more at klaviyo.com/careers to discover how we empower creators to take charge of their destinies.Klaviyo is on a rapid growth trajectory with positions available for various skill levels across all teams. For insights into our engineering culture, visit https://klaviyo.tech.We thrive on solving complex engineering challenges and seek Engineers who, while specializing in specific fields, are passionate about building, owning, and scaling features from inception to deployment, overcoming any obstacles in their path. We motivate each other to step out of our comfort zones, embrace new technologies, and continuously strive for improvement.Klaviyo operates a real-time data platform developed in Python, designed for massive scalability on Amazon Web Services (AWS). Our Engineers come from a wide array of programming backgrounds and disciplines.Team Overview:The Developer Experience (DevX) team is a dynamic, hybrid product-platform group dedicated to empowering external developers and partners by enhancing the applications they create utilizing Klaviyo’s Public APIs and features. Key areas of responsibility include:Managing our Application directory, which facilitates Klaviyo customers in discovering applications available for activation.Overseeing the self-service application process for partners to submit their applications, and enabling Klaviyo staff to review and approve submissions.Developing API Analytics, a system that assists developers and partners in diagnosing application issues and understanding their API utilization, powered by a near real-time data pipeline processing over 160,000 events per second.Generating autogenerated API documentation, SDKs, CLIs, and MCP servers.Responsibilities:...

About UsAt CarGurus (NASDAQ: CARG), we strive to empower individuals in their journey to reach their destination. Originating as a dedicated team of developers, we've worked tirelessly to instill trust and transparency in the car shopping experience. Our relentless innovation and swift market strategies have propelled us to become the largest and fastest-growing automotive marketplace, boasting over 15 years of profitability.Our MissionThe automotive landscape is evolving, and so are we. Our commitment extends to transforming the entire car ownership process online, guiding our customers from selling their old vehicles to financing, purchasing, and delivering new ones. Each month, millions of consumers visit CarGurus.com, with approximately 30,000 dealerships utilizing our solutions. Our employees appreciate our people-first culture, which prioritizes kindness, collaboration, and innovation, empowering our Gurus to advance their careers. Join us in disrupting this trillion-dollar industry!Role OverviewWe are on the lookout for a Principal Software Engineer to join our DevX Pipelines & Automation team. This pivotal role is essential in accelerating our time-to-market while ensuring the highest quality. You will contribute to the continuous modernization of our platform, focusing on self-service pipelines and ephemeral environments. The perfect candidate is passionate about Continuous Delivery and platform development, with a robust background in supporting complex software systems and a drive to enhance software delivery processes.

Join OpenGov as a Senior Software Engineer and become part of a dynamic team dedicated to transforming how governments operate. In this role, you will lead the design and development of innovative software solutions that empower public sector organizations to enhance transparency and efficiency.

At Hi Marley, we understand that insurance plays a crucial role in people's lives during their most challenging times. Our mission is to revolutionize communication within the Property and Casualty (P&C) industry, making those pivotal moments quicker, simpler, and more empathetic for both carriers and their customers. We harness the power of AI-driven software to keep the claims conversation both informed and connected. If you share our vision of merging operational excellence and automation with a human touch, we’d be thrilled to connect with you.As we expand our team, we are seeking a Senior Software Engineer who is enthusiastic about crafting high-quality software that creates a tangible impact. You will be instrumental in delivering distributed and scalable systems that facilitate meaningful interactions between carriers and their clients. The ideal candidate should have a proven track record of developing within cloud environments and a pragmatic, hands-on approach to innovation—leveraging cutting-edge technologies, including AI-assisted development tools, to tackle complex challenges and yield significant results.Collaboration and shared enthusiasm are foundational to our culture, which is why this position entails being present in our Boston office two days a week.

Join our team as a Senior Software Engineer, where you'll play a pivotal role in developing innovative hiring solutions that empower organizations like Netflix, Shopify, and Spotify. We are dedicated to transforming the recruitment landscape and are seeking talented individuals to help us scale our impact.

A fulfilling career awaits you!At Conga, we foster a community where our team members can truly flourish. Here, you'll discover ample opportunities for innovation and personal growth, all within a collaborative environment that values every opinion.Conga propels businesses on their journey to becoming more interconnected and intelligent. Our Conga Advantage Platform is globally acknowledged for enhancing this journey by merging Configure, Price, Quote, Contract Lifecycle Management, and Document Automation into a unified, open platform. It integrates effortlessly with any ERP, CRM, and Cloud system. Leveraging a cohesive data model and tailored AI, Conga empowers organizations to achieve a distinctive advantage, characterized by seamless connectivity, actionable insights, and scalable growth.Our methodology is rooted in the Conga Way, a guiding framework that embodies our values and influences all aspects from hiring to decision-making processes, including key initiatives like employee recognition. Developed with direct contributions from our employees, the Conga Way is the cornerstone of our vibrant culture.

At Later, we redefine influencer marketing by harnessing the power of genuine creator relationships and cutting-edge technology. Our AI-driven platform, backed by over a decade of proprietary data—including billions of social interactions and more than $2.4 billion in verified influencer-driven purchases—provides brands the confidence to craft unforgettable campaigns. With our expert guidance, brands can navigate the complexities of influencer marketing to maximize their impact on awareness, engagement, and revenue. Trusted by industry leaders like Nike, Wayfair, Unilever, and Southwest Airlines, Later seamlessly blends creativity with performance to ensure that every campaign not only looks exceptional but also delivers tangible results. Discover more at later.com.About the role:The Senior Software Engineer will play a pivotal role in driving significant projects, implementing impactful features, and upholding our high engineering standards. You will tackle complex challenges, collaborate across various teams, and mentor junior engineers while continually enhancing our codebases and promoting a culture of technical excellence. With profound expertise in contemporary software development and Agile methodologies, you'll influence product velocity and engineering culture.Your Responsibilities:Strategic LeadershipDefine, plan, and lead the delivery of extensive features and roadmap initiatives.Clarify and refine requirements among stakeholders in a dynamic environment.Navigate ambiguous requirements and divergent interests to deliver features that excite users.Contribute to long-term architectural planning and system design.Technical ExecutionLead the resolution of complex technical challenges across teams and production environments.Continuously improve code quality, system performance, and engineering practices.

Join Klaviyo as a Senior Software Engineer focused on Growth, where you'll play a pivotal role in enhancing our platform's capabilities. You will work closely with cross-functional teams to design, develop, and implement innovative solutions that drive user engagement and expand our customer base. This is an exciting opportunity to leverage your technical expertise in a dynamic environment.

Senior/Staff Software Engineer, Applications AcuityMD is an innovative software and data platform that accelerates the accessibility of medical technologies. We empower MedTech companies to gain insights into product usage, understand customer variations, and pinpoint opportunities that enable physicians to enhance patient care. Annually, the FDA approves approximately 6,000 new medical devices, and our solution streamlines the process of getting these products into the hands of physicians, ultimately improving patient outcomes. Supported by prominent investors like Benchmark, Redpoint, ICONIQ Growth, and Ajax Health, we are a rapidly expanding SaaS company. We are seeking a talented Senior/Staff Engineer to join our dynamic Customer Intelligence Team. This role offers the chance to engage in all facets of current and future product development. Collaborate with other passionate engineers on challenging projects that introduce cutting-edge technologies to patients. Team Mission Within the Application Team, our goal extends beyond engineering software; we are transforming how medical technologies are delivered to those in need. The Customer Intelligence Team empowers MedTech companies to expedite the adoption of state-of-the-art medical technology by optimizing their sales processes through seamless and context-rich workflows. Assist our clients in strategizing their sales efforts to both existing and prospective users by integrating market data and AI-driven recommendations into their daily operations. We collaborate with top-tier MedTech companies and are on a journey of rapid feature development to guarantee their success. Your contributions will be pivotal in delivering impactful, high-quality, and scalable solutions that truly matter. You will collaborate with Product Managers, Designers, and fellow Engineers to build comprehensive features across both web and mobile platforms. We prioritize delivering excellent work while fostering a fun, collaborative, and supportive team environment, as we believe strong relationships enhance our collective performance! Advance your career while working on meaningful projects across various tech stacks, including JavaScript, React, TypeScript, GraphQL, Node.js, Python, and SQL.

Urban Compass is looking for a Senior Software Engineer II in Boston to help shape and build the next generation of its platform. This position centers on designing and implementing new software features that drive both technical progress and a strong user experience. Role overview As a Senior Software Engineer II, the work involves collaborating with colleagues from different teams to deliver solutions that improve the platform. The focus is on both technical quality and usability, keeping the product aligned with current technology trends. Key responsibilities Design and implement software features and improvements Work closely with cross-functional teams to deliver high-quality solutions Contribute to maintaining a modern, user-focused platform Location This role is based in Boston.

Role Overview Alarm.com is seeking a Senior Software Engineering Manager in Boston, Massachusetts. This leader will guide a skilled team focused on building software solutions that support and empower customers. The position involves managing software development projects, tracking progress, and upholding strong quality standards throughout the process. Key Responsibilities Oversee end-to-end software development projects, from planning through delivery Ensure projects meet timelines and quality expectations Work closely with cross-functional teams to support technical goals Promote a culture of continuous improvement and technical growth

Veeva Systems Inc. is a purpose-driven leader in the industry cloud sector, dedicated to accelerating the journey of life sciences companies in delivering therapies to patients more swiftly. As one of the fastest-growing SaaS enterprises in history, we achieved over $2 billion in revenue last fiscal year, with promising growth prospects ahead.At the core of Veeva's culture are our values: Integrity, Customer Success, Employee Empowerment, and Agility. We are not just another public company; we made history in 2021 by becoming a Public Benefit Corporation (PBC), legally committed to balancing the interests of customers, employees, society, and investors.As a Work Anywhere organization, we offer the flexibility to work from home or the office, allowing you to thrive in your preferred environment.Join us in transforming the life sciences sector, as we strive to create a positive impact on our customers, employees, and communities.The RoleWe are seeking multiple Senior Sustaining Software Engineers who are enthusiastic about working in a dynamic, startup-like atmosphere within a stable and profitable company. Our team tackles intricate challenges that influence the efficiency and speed of the life sciences industry. In this role, you will dive right in, identifying and resolving issues related to our Vault CRM product.

Mission Overview: We are seeking a highly skilled Senior Software Engineer to spearhead the development and execution of automated workflows, advanced tooling, and insightful analytics that will empower our autonomy stack to achieve unparalleled scalability. Your expertise will be crucial in transforming vast datasets into actionable engineering insights, ensuring that our software releases are resilient, thoroughly validated, and prepared for real-world deployment. Key Responsibilities: Design Intelligent Tooling: Lead the design and implementation of sophisticated automation systems aimed at categorizing and elucidating complex system behaviors using advanced data modeling techniques to expedite solution delivery. Drive Analytical Initiatives: Take charge of developing impactful performance visualization tools that convert raw metrics into clear, actionable insights related to on-road performance. Enhance Release Engineering: Leverage your experience to refine our release processes, steering the team towards a highly automated deployment framework that upholds quality while boosting efficiency. Advance Simulation Techniques: Play a pivotal role in enhancing our virtual testing environments, ensuring our simulation suites deliver the high-fidelity feedback necessary to accurately interpret releases. Collaborate Across Disciplines: Engage within a large, multi-disciplinary codebase to facilitate seamless integration between planning, motion, and control teams. Qualifications: Substantial experience in building production-grade applications, tools, and pipelines using Python. Proficient in navigating and contributing to large, complex codebases where modularity and thorough documentation are essential. Demonstrated success in delivering software in a production environment, with familiarity in CI/CD practices, version control at scale, and rigorous release cycles. Strong curiosity about data, with the capability to extract meaningful patterns from complex, high-dimensional datasets. A deep passion for a driverless future, with an understanding of the critical nature of deploying software that interacts with the physical environment. Bonus Qualifications (not mandatory): Experience with C++ in a Linux environment. Familiarity with Machine Learning frameworks or Large Language Model (LLM) integration. A background in robotics middleware (ROS, DDS) or autonomous systems.

Urban Compass is looking for a Senior Software Engineer II in Boston. This position centers on building software that improves both user experience and operational processes in the real estate sector. Role overview As a Senior Software Engineer II, the work involves designing and developing new features and tools for Urban Compass’s platform. The team values practical solutions that make real estate transactions smoother and more efficient for users. What you will do Create and maintain software that supports the company’s mission in real estate technology. Work alongside other engineers to deliver features that improve usability and efficiency. Apply technical expertise to solve complex problems and contribute to ongoing projects. Requirements Experience in software engineering at a senior level. Ability to design and implement solutions that enhance user experience and operational workflows.

Join Recorded Future as a Senior Software Engineer, where you will play a pivotal role in developing innovative software solutions that enhance our threat intelligence platform. Your expertise will help shape the future of cybersecurity, as you collaborate with a dynamic team of engineers to design, build, and maintain scalable systems.

Join Klaviyo as a Senior Software Engineer specializing in Channel Processing, where you will play a pivotal role in enhancing our data processing capabilities. In this position, you will work closely with cross-functional teams to design, develop, and implement robust software solutions that improve our channel processing infrastructure. This is an exciting opportunity to contribute to a rapidly growing company dedicated to empowering businesses through innovative technology.

Join Our Innovative TeamBe part of the Customer Experience (CX) Product team that oversees the complete post-booking journey. From the moment a trip is booked to handling changes, disruptions, refunds, and customer support interactions, we are dedicated to enhancing the travel experience.We develop and maintain systems that provide rapid, high-quality support at scale, including:User-friendly self-service experiences within the Hopper app and partner-integrated systems.Robust internal agent platforms that facilitate efficient, high-quality human resolution.HTS Assist, our premier agentic AI platform, utilized internally and as a B2B solution for global travel partners.Our platforms serve millions of travelers across various channels—chat, voice, web, and third-party—ensuring seamless post-booking experiences worldwide.Your RoleAs a Senior Software Engineer in the CX Platform team, you will architect, build, and enhance the core systems that underpin Hopper’s post-booking experience. Your contributions will directly affect customers, internal support agents, and the growth of HTS Assist across AI-driven communication channels.You will work in close collaboration with Product, Design, AI, Data, and Operations teams to deliver intelligent, scalable customer service systems, including conversational AI workflows and self-service customer journeys.Daily ResponsibilitiesDesign, develop, and enhance backend and/or full-stack systems that support HTS Assist, internal agent tools, and customer self-service flows.Create scalable APIs, microservices, and orchestration logic for complex post-booking journeys across AI, chat, voice, and web.Collaborate with product, design, AI, and operations teams to implement features that optimize customer experiences and improve agent efficiency.Integrate with external systems such as telephony, CRM, identity, and booking platforms to support both internal and partner-specific applications.Own features from initial technical design through implementation, testing, deployment, monitoring, and iteration.

At Upbound, we are revolutionizing modern infrastructure for the Agentic AI Era. As the creators and leading maintainers of Crossplane, we are developing the Intelligent Control Plane—a novel platform layer designed to render infrastructure programmable, autonomous, and composable.Our mission is to empower AI-native enterprises with a foundational platform layer that enables teams to provision, operate, and adapt infrastructure at scale, ensuring readiness for both human and AI agents. We collaborate with premier cloud providers, independent software vendors (ISVs), and open-source communities to empower organizations to move swiftly and confidently.Currently, Upbound supports Fortune 500 companies and platform engineers across more than 100 countries. Crossplane has exceeded 100M+ downloads and is utilized by over 1,000 teams globally. We are a Series B company backed by GV (formerly Google Ventures), Altimeter Capital, and Intel Capital, having raised $69M to date. Discover more at upbound.io.We are seeking a Senior Software Engineer to join our team in building and operating Upbound Spaces, the comprehensive control plane management software that lies at the core of the Upbound Platform. In this pivotal role, you will help scale Upbound to efficiently support thousands of control planes while enhancing enterprise control plane management and operations both in the cloud and on-premises. This is an ideal opportunity for you to make a substantial engineering impact in both development and production operations.

Join Xometry as a Senior Software Engineer, where you will play a pivotal role in developing innovative software solutions that drive our business forward. You will collaborate with talented engineers to create applications that enhance our platform’s functionality and user experience.

Role Overview Whoop is looking for a Senior Frontend Software Engineer to work on growth-focused projects in Boston, MA. This role centers on improving user experience and increasing engagement across our platform. What You Will Do Work closely with teams from different disciplines to design and deliver new features and improvements. Develop scalable, efficient, and visually polished frontend applications. Apply frontend expertise to create solutions that support Whoop’s mission and meet user needs. What We’re Looking For Strong background in frontend technologies. Experience building user-facing applications with attention to performance and design. Ability to collaborate effectively with engineers, designers, and product managers.